import axios from 'axios'
import {
  Message
} from 'element-ui'
// import { getToken } from '@/utils/auth'

axios.defaults.withCredentials = true
// create an axios instance
const service = axios.create({
  baseURL: '', // url = base url + request url
  withCredentials: true, // send cookies when cross-domain requests
  timeout: 60000 // request timeout
})
const SUCCESS_CODE = '0'

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    if (localStorage.getItem('token')) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation

      config.headers['X-Access-Token'] = localStorage.getItem('token')
    }

    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    if (response.code === 302) {
      location.href = location.host + '/#/login'
    }
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (String(res.code) !== SUCCESS_CODE) {
      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.msg && res.msg.includes('Token失效，请重新登录')) {
        // to re-login
      }

      Message({
        message: res && res.msg ? res.msg : 'Server Side Error',
        type: 'error',
        duration: 5 * 1000
      })
      return Promise.reject(new Error(res.msg || 'Error'))
    } else {
      return res.data
    }
  },
  error => {
    if (error.response.data && error.response.data.msg && error.response.data.msg.includes('Token失效，请重新登录')) {
      // to re-login
    } else {
      Message({
        message: error.msg,
        type: 'error',
        duration: 5 * 1000
      })
    }

    return Promise.reject(error)
  }
)

export default service
